... and there's
RAV. McAfee got a *NIX cli scanner as well. Both are commercial tho. Mac's got more viruses that linux. As I said in previous AV threads, it's not so much Linux viruses (Silvio made, uh 5?) you'll be worried but it's nice to scan your packages for Other Stuff like LRK's, worms, autorooters, etc etc.
Btw, I tested the CLAM package about a month ago on some AV stash, and it wasn't up to par with some commercial ones (AVP, RAV, Mcafee).
Here's to show some from what RAV tells me:
..[ ].tgz->(GZIP)->tk/find Infected_with:_Worm/Linux.Lion_(exact)
..[ ].tgz->(GZIP)->tk/ifconfig Infected_with:_Worm/Linux.Lion_(exact)
..[ ].tgz->(GZIP)->tk/pg Infected_with:_Worm/Linux.Lion_(exact)
..[ ].tgz->(GZIP)->tk/ssh.tgz->(GZIP)->.t0rn/shhk.pub Infected_with:_Trojan/Linux.Rootkit.T0rn_(exact)
..[ ].tgz->(GZIP)->tk/ssh.tgz->(GZIP)->.t0rn/shrs Infected_with:_Trojan/Linux.Rootkit.T0rn_(exact)
.->(GZIP)->w0rm/ADMw0rm Infected_with:_SH/Admworm.A*
.->(GZIP)->w0rm/testvuln.c Infected_with:_Worm/Linux.Admworm*
.->(GZIP)->w0rm/startup Infected_with:_SH/Admworm.A*
trojans/GMCreator_v0.4.zip-XPLT->GMCreator_v0.4/GMCreator.vbs Infected_with:_VBS/GMW.D*
trojans/GMCreator_v0.4.zip-XPLT->GMCreator_v0.4/ONZ.EXE Infected_with:_Trojan/Backdoor.AB_(exact)
trojans/wpack1.2b.zip-XPLT->wCRAT_Release_Pack_1.2b/wCServer.exe Infected_with:_Trojan/Win32.WCRAT.12B.DISARMED->
uniattack.pl Infected_with:_Worm/Solaris.Sadmind
ssh.tgz->(GZIP)->.t0rn/shrs Infected_with:_Trojan/Linux.Rootkit.T0rn_(exact)